1. Effects of reversal and nonreversal shifts with CVC stimuli;Bogartz;Journal of Verbal Learning and Verbal Behavior,1965
2. Measures of category clustering in free recall;Frankel;Psychological Bulletin,1971
3. Developmental analysis of reversal and half-reversal shifts;Kendler;Developmental Psychology,1969
4. Reversal and partial reversal shifts with verbal material;Kendler;Journal of Verbal Learning and Verbal Behavior,1967
5. Emergent conceptual cues in multiple item verbal discrimination learning;Medin,1970